LTC2633HTS8-HZ8#TRMPBF

Overview

The LTC2633HTS8-HZ8#TRMPBF is a dual 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in an 8-lead TSOT-23 package. It features an integrated precision reference with a full-scale output of 4.096V and operates on a single 4.5V to 5.5V supply. The device communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1.5 LSB, a settling time of 4.7µs at 5V, and a supply current of 0.5mA at 3V. It includes a power-on reset circuit configured to clear outputs to zero-scale.

Feature Summary

• Dual 12-bit resolution with rail-to-rail output buffers
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Power-on reset to zero-scale for consistent initialization
• I²C interface with selectable slave addresses via CA0 pin

Applications

• Mobile communications systems
• Process control and industrial automation
• Portable equipment requiring low power consumption
• Automotive applications operating in extended temperature ranges

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration. Confirm that the H-grade designation corresponds to the automotive temperature range of –40°C to 125°C. Ensure the HTS8 package type matches the required 8-lead ThinSOT footprint for the target PCB layout.

Selection Notes

Select this part when a dual-channel DAC with high accuracy (±1.5 LSB INL) and low power consumption is required. The H-grade version is necessary for environments exceeding 70°C. The internal 4.096V reference eliminates the need for external components, reducing board space. Verify that the system supply voltage remains within the 4.5V to 5.5V range for specified performance.

Part Context

This component belongs to the LTC2633 family of dual DACs. Variants differ by resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset behavior. The 'A' grade denotes improved linearity compared to standard grades. The 'H' suffix specifies the extended temperature range suitable for automotive use.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineering changes may require verification of pin compatibility and register mapping if substituting with other dual DAC families.